Tool for splicing wires



(No Model.)

S. E .m Rw E nu Hm S .im HIL .P .S WR .m HL O 0 T Patented Sept. 2, 1890.

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HENRY W. FISHER, OF PITTSBURG, PENNSYLVANIA.

TOOL FOR SPLICING WIRES.

SPECIFICATION forming part of Letters Patent No. 435,415, dated September 2, 1890.

To all whom t may concern.-

Be it known that I, HENRY WV. FISHER, a citizen of the United States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented or discovered certain new and useful Improvements in Splicing-Tools, of which improvements the following is a specification.

The invention described herein relates to certain improvements in tools for connecting or splicingthe ends of wires generally, but more especially the wires of electric cables, and has for its object a construction of tool wherein a strip of metal is pressed tightly around the wires to be connected, thereby bringing interlocking projections and recesses on the edges of said strips into line vertically with each other, and said interlocking proj ections and recesses are then by the further operationtof the tool forced into engagement with each other.

In general terlns the invention consists in the construction and combination of mechanical devices or elements, all as more fully hereinafter described and claimed.

In the accompanying drawings, forming a part of this specification, Figure 1 is a view in side elevation of my improved tool. Fig. 2 is an edge elevation of the same. Fig. 3 is a detail view of the jaw for effecting the engagement of the interlocking parts of the sleeve. Fig. 4 is a sectional view, the plane of section being indicated by the line Qc Qc, Fig. 2. Fig. 5 is a sectional view on the line y y, Fig. l. Fig. 6 is a detail view showing a modiication of the sliding head. Fig. 7 Vis a sectional view showing the position of the parts at the beginning of the splicing operation. Fig. S is a similar view showing the position of the parts after the operation of the sliding head. Fig. 9 shows the position of the parts at the end of the splicing operation. Fig. 10 is a plan view of the binding-strip. Fig. ll is a view of the completed joint; and Fig. l2 is a front view of one of the dies, showing the indenting-ribs.

In order to render the construction and operation of the tool more clear, I will first describe the joint which the tool is designed to form, the construction and manner of forming the joint being clearly shown inFigs. 7 to Application filed February 20, 1890. Serial No. 341,146. (No model.)

ll, inclusive. The inclosing-sleeve is formed by a strip of metal ct of a length suiiicient to ext-end around two wires arranged side by side lapping. The sleeve is then pressed tightly around the wires until the interlocking parts overlap one another, and then said interlocking parts are pressed into engagement with each other, as shown in Figs. 9 and l1. The tool employed in the formation of this joint consists of two jaws A and B, pivoted together and provided with suitable closing-handles e and d. The jawA is slotted, as shown in Figs. 2 and 4, and through this slot is passed the handle of the jaw B. The pivot-pin l is secured as against rotation in the handle-cl by the key 2 and has bearings in the cheek-pieces on each side of the slot in the jaw A, as clearly shown in Fig. 5. This construction permits of the movement of the jaws A and B toward each other, and also insures a rotation of the pivot-pin with reference to the jaw A. The sides of the j awA are grooved longitudinally from the front end thereof back to a point in the rear of the pivot-pins, as shown in Figs. l, 4, and 5, for the reception of the side straps 3 of the movable head 4. In these side straps are formed eyes for the reception of disks 5, secured eccentrically on the outer ends of the pivot-pin l. These disks or eccentrics are so arranged on the pivot-pin that by the rotation imparted to the pin in closing the jaws the head 4 will be moved inwardly and forced outwardly when the jaws are opened.

On the head 4 is attached a die-block 6, having a groove 7 formed in its operative face for the reception of the one side of the sleeve a. As the head 4 is drawn inwardly by closing the jaws A and B, the die 6 forces the sleeve and inclosed wires against a correspondingly-grooved die 8, secured to the jaw A, as shown in Figs. 4, 7, and 8, and by the complete inward movement of the die 6 the sleeve is closed up tightly, binding the two wires to- IOO gether, and the two edges of the sleeve havin g the interlocking parts are forced into line, but one on top of the other, as shown in Fig.

' 8; The parts of the tool are so proportioned that the head 4. and die 6 have completed their inward movement before the jaws A and B are entirely closed. As soon as the dies have closed the sleeve around the wires the jaw B comes into operation and forces the interlocking projectionsinto engagement. It

is preferred to, attach to the jaw B a die-block l 9, having a rib 10 or series of small projec.

' in a recess in the block, as shown.

In order to obviate any liabilit;7 of the withdrawal of the wires from the sleeve, small ribs 12 may be formed on the operative faces of the dies, as shown in Fig. 12, said ribs serving to indent the sleeve, and wires, as indicated in dotted curved lines in Fig. 11.

I claim herein as my inventionf 1. In a tool for splicing wires, the combina tion of a pair of jaws movable toward and away from each other and a pairof dies mounted on one of said jaws and movable with reference to each other, substantially as set forth.

2. In a tool for splicing wires, the combination of a pair of jaws movable toward and away from each other and a pair of dies mount ed on one of said jaws, one of the dies being operated toward and from the other by the other of the said jaws in the closing and opening movements, substantially as set forth.

3. In a tool for splicing wire, the combina tion of a pair of jaws movable toward and away from each other, a pair of grooved dies mounted on one of said jaws and movable with reference to each other, and a rib or prf jection on the opposite jaw, substantially as set forth.

4. In a tool for splicing wires, the combina'- tion of a pair of jaws, a pivotpin connecting said jaws and rotated by the movement of one of the jaws, a head provided with a grooved die mounted in the other of the said jaws, ec-` centrics 'secured to the pivot-pin for operating the head, and a grooved stationary die on the latter-named jaw, substantially as set forth.

In testimony whereof I have hereunto set my hand.

HENRY W. FISI-IER.

Witnesses: Y

DARWIN S. WoLcorr, R. H.' WHITTLESEY. 

